Joined in 2023 
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Recommended load is 15A (small print), so around 180W. I’ve prepared additional cooling, so I guess it should manage to go to 20A peak at 13V (240W-250W). connect battery connector positive line to switch (if you have it with diode – like I do – you also need to provide negative/ground one) The charger also has a belt clip that feels strong but I didn't use this. Honestly I think it would hold up to 5ah batteries, it's just too bulky to have in your belt and walk around. The figment was very tight to the Makita 5ah battery I tested, actually nice to see this since some brands have very loose connections. No issues removing or connecting the battery.
So recently I’ve switched to Makita 18V system. And I was a bit disappointed there was no something like DeWalt Power Station – that is 230V inverter powered with Makita batteries. Power Inverter for Makita 18V Battery to 120V AC Outlets Portable Power Station Battery Generator with 1 AC Outlet 2 USB Ports LED Light Outdoor Generator for Road Trip, Home Emergency, Laptop, Small Devices
Anyway, I assume Makita batteries (5Ah or more) can provide 20A current easily. I haven’t tested more, but quality 18650 cells are usually rated 20A-30A. There can be some limitation for electronics inside battery – so 20A is my limit.
You can help yourself with the picture on the top, where there is everything lying on the floor and described components. Just add switch and breaker box. Makita battery connectors – you could also print it. I’ve manage to find genuine parts in Poland for 2EUR As an aggregator you could use Wago (left on picture above) connectors (they should withstand the current, despite they are not rated for it) – but I’ve used connector (two on the right side of the picture above) design to be used in mains line boxes rated for 80A. Equipped with Star Protection Computer Controls™ to protect against overloading, over-discharging and over-heating
Powered by (1) 18V LXT® battery with the option to insert (1) additional battery for extended run time (batteries sold separately) Compact LED Nightlight: Featuring a 450LM LED work light, with its compact size (4 x 3 x 4in) and lightweight 0.7LB, this portable battery inverter is a great gadget for outdoor power solution and outdoor camping light, and you can store it anywhere
Safe and Secure: Equipped with a small fan and ventilation holes to increase the heat dissipation function. The power station provides short-circuit, over-current, under-voltage, over-voltage, over-load, low-load, over-heat, over-drain protection If you would go with 24V and want to use inverter later on, for some kind of the off grid system – you could use more robust device – this won’t hurt batteries if you will limit power usage to something sensible. Tool users who unplug the cord with Makita 18V LXT® experience new levels of convenience, efficiency and productivity. Makita created the 18V Lithium-Ion cordless tool category in 2005, and today it is the world’s largest 18V cordless tool line-up. Makita’s leading technology gives tool users unmatched performance and breadth of line, with innovation in motor and battery technology that is obliterating industry standards – and leaving old thinking behind. With high amp-hour batteries, efficient brushed and brushless motors, and 36V (18V X2) LXT® technology, Makita 18V LXT® tools not only meet corded demands, they can exceed the performance of corded, all while remaining in a single cordless platform powered by the industry's fastest-charging 18V lithium-ion batteries. [Learn More] Four switches – mine proved to be too crappy – one broke and short circuit the battery melting the wires – needed to replace them later Some final words. I’ve tested this device under long term load (like 200W) for 2 hours continuously – I haven’t observed any problems. I’ve tested it for few minutes with around 800-900W load (meter showed almost 90Amps on output) – all wires and electronic was fine. But of course, main wires were getting hot. So I can say this device is definitely working.inverter still requires at least 67Amps (more like 80A) for 12V and this is already a lot of current (twice at peak). For large car batteries it’s not something terrible (my 100Ah battery has peak current over 800A) – but it could drain it real fast, and four Makita batteries in a blink of an eye. It’s part of Makita’s expanding 18V Lithium-Ion system, the world’s largest cordless tool system powered by 18V Lithium-Ion slide-style batteries. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger. I guess the Battery charger really didn't help save my life. It couldn't have. There was no reception anyway. But I was still happy to have a cell phone with an OK charge when I woke up in the hospital. I was able to ignore some of my pain and the disorienting effects of the heavy pain killers they were pumping into my body intravenously, because I could listen to my favorite Merle Haggard album on the MP3s inside of the phone. I finally knew that I was going to revocer and I was going to survive my accident when I was able to just listen to that darned Merle album. That song where he sings about how the "best part of dyin' is livin' real good" was just what I needed in that moment. It helped me make the decision to live. Printable version of battery holder and the box itself I’ve put on Thigiverse. This is assembled version printed in PLA with “old” type switches Warm Reminded: The max power of this power supply is 200W, so please make sure that the power of the electrical appliances should be less than 200W of the rated power of the inverter
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